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Finding the Fourth Proportional to 71,473.14, 98,644.74 and 39,652.29

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Solution

The fourth proportional to 71,473.14, 98,644.74 and 39,652.29 is: 54,726.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,473.14 : 98,644.74 = 39,652.29 : x
  2. Step 2: Convert to fraction form
    71,473.14/98,644.74 = 39,652.29/x
  3. Step 3: Cross multiply
    71,473.14x = 98,644.74 × 39,652.29
  4. Step 4: Simplify right side
    71,473.14x = 3,911,489,145.97
  5. Step 5: Solve for x
    x = 3,911,489,145.97/71,473.14
  6. Step 6: Final answer
    x = 54,726.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.